AUTHOR=Sheng Zhimin , Liu Xiang , Lin Kang , Liu Jie , Mao Junqin , Qian Xiaowei TITLE=Determining the effective dose of esketamine combined with propofol for painless hysteroscopy: a prospective dose-finding study JOURNAL=Frontiers in Pharmacology VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2024.1419732 DOI=10.3389/fphar.2024.1419732 ISSN=1663-9812